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package network // import "collectd.org/network"
import (
"context"
"log"
"net"
"os"
"sync"
"testing"
"time"
"collectd.org/format"
)
// This example demonstrates how to listen to encrypted network traffic and
// dump it to STDOUT using format.Putval.
func ExampleServer_ListenAndWrite() {
srv := &Server{
Addr: net.JoinHostPort("::", DefaultService),
Writer: format.NewPutval(os.Stdout),
PasswordLookup: NewAuthFile("/etc/collectd/users"),
}
// blocks
log.Fatal(srv.ListenAndWrite(context.Background()))
}
// This example demonstrates how to forward received IPv6 multicast traffic to
// a unicast address, using PSK encryption.
func ExampleListenAndWrite() {
opts := ClientOptions{
SecurityLevel: Encrypt,
Username: "collectd",
Password: "dieXah7e",
}
client, err := Dial(net.JoinHostPort("example.com", DefaultService), opts)
if err != nil {
log.Fatal(err)
}
defer client.Close()
// blocks
log.Fatal(ListenAndWrite(context.Background(), ":"+DefaultService, client))
}
func TestServer_Cancellation(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
wg := &sync.WaitGroup{}
wg.Add(1)
var srvErr error
go func() {
srv := &Server{
Addr: "localhost:" + DefaultService,
}
srvErr = srv.ListenAndWrite(ctx)
wg.Done()
}()
// wait for a bit, then shut down the server
time.Sleep(100 * time.Millisecond)
cancel()
wg.Wait()
if srvErr != context.Canceled {
t.Errorf("srvErr = %#v, want %#v", srvErr, context.Canceled)
}
}
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